Thank-you for contacting Slingbox Forum.
If you are talking about the Slingbox requesting the administrator password, this link may be of help. How to reset your Slingbox to factory settings...
You may,also, want to try to clear the cache and cookies from your computer, due to the fact that it may be remembering the old passwords and getting confused.
Hope this helps with your issue.
Sling Moderation Team